CRR Metric for R2R
Maddee Rubenson (FlowWest)
2022-11-30
Run fallRunDSM model
Must use FlowWest/fallRunDSM branch crr/metrics of fallRunDSM. This branch has been modified to have the necessary outputs to quantify cohort replacement rate.
Adult Return Ratio
Definition: This value represents the proportion of natural spawners created by in river spawners from three years prior.
Calculation: Adult return to natural origin/spawning adult ratio (mean) is defined as: the number of natural origin adult returns in year X + 3 divided by the number of in-river spawners in year X.
\(natural origin adults _ (x+3) / in river spawners_x\)
Assumptions:
Adults return over the course of three years with 25% returning in year X + 2, 50% returning in year X + 3, and the final 25% returning in year X + 4. For example, in year 6 adults are returning from years 2 (25%), 3 (50%), and 4 (25%). This should be considered when exploring the adult return ratio because each year’s value is an aggregate of multiple years of return salmonids.
Values as
NAdo not have spawning
| watershed | mean_adult_return_to_origin | median_adult_return_to_origin |
|---|---|---|
| American River | 25.0 | 21.8 |
| Antelope Creek | 133.9 | 66.5 |
| Battle Creek | 0.5 | 0.3 |
| Bear Creek | 142.8 | 82.0 |
| Bear River | 141.2 | 87.8 |
| Big Chico Creek | 145.5 | 71.7 |
| Butte Creek | 95.5 | 64.9 |
| Calaveras River | 181.9 | 130.7 |
| Clear Creek | 48.1 | 28.9 |
| Cosumnes River | 126.6 | 85.7 |
| Cottonwood Creek | 94.3 | 51.3 |
| Cow Creek | 64.6 | 26.9 |
| Deer Creek | 78.8 | 36.4 |
| Elder Creek | 215.4 | 116.7 |
| Feather River | 16.6 | 9.6 |
| Lower-mid Sacramento River | NaN | NA |
| Lower Sacramento River | NaN | NA |
| Merced River | 11.5 | 5.3 |
| Mill Creek | 70.6 | 27.9 |
| Mokelumne River | 4.0 | 1.4 |
| Paynes Creek | 136.5 | 71.2 |
| San Joaquin River | NaN | NA |
| Stanislaus River | 34.5 | 22.1 |
| Stony Creek | 168.4 | 109.5 |
| Sutter Bypass | NaN | NA |
| Thomes Creek | 161.2 | 82.5 |
| Tuolumne River | 20.4 | 12.1 |
| Upper-mid Sacramento River | NaN | NA |
| Upper Sacramento River | 53.7 | 27.7 |
| Yolo Bypass | NaN | NA |
| Yuba River | 66.8 | 26.5 |
Juveniles to Adult Ratio
Definition: This ratio represents the percent of returning natural origin adults that a cohort of juveniles produces.
Calculation: The average juvenile to adult return ration is defined as the number of juveniles produced in year X divided by the number of natural origin adult returns in year X + 3.
\(juveniles_x / natural origin adults_(x_+3)\)
Assumptions:
The number of juveniles produced is assumed to be the value prior to survival and migration factors applied. TODO: Do we want to capture total juveniles prior to or after survival metrics are applied?
Values as
NAdo not have spawning
| watershed | avg_juvenile_metric_perc | median_juvenile_metric_perc |
|---|---|---|
| Elder Creek | 0.4 | 0.2 |
| Calaveras River | 0.4 | 0.3 |
| Cottonwood Creek | 0.3 | 0.2 |
| Stony Creek | 0.3 | 0.2 |
| Thomes Creek | 0.3 | 0.1 |
| Bear River | 0.3 | 0.2 |
| Big Chico Creek | 0.3 | 0.1 |
| Bear Creek | 0.3 | 0.1 |
| Paynes Creek | 0.2 | 0.1 |
| Cosumnes River | 0.2 | 0.2 |
| Antelope Creek | 0.2 | 0.1 |
| Butte Creek | 0.2 | 0.1 |
| Deer Creek | 0.1 | 0.1 |
| Mill Creek | 0.1 | 0.1 |
| Yuba River | 0.1 | 0.0 |
| Upper Sacramento River | 0.1 | 0.1 |
| Cow Creek | 0.1 | 0.0 |
| Feather River | 0.1 | 0.0 |
| Clear Creek | 0.1 | 0.0 |
| Stanislaus River | 0.1 | 0.0 |
| American River | 0.0 | 0.0 |
| Tuolumne River | 0.0 | 0.0 |
| Merced River | 0.0 | 0.0 |
| Battle Creek | 0.0 | 0.0 |
| Mokelumne River | 0.0 | 0.0 |
| Lower-mid Sacramento River | NaN | NA |
| Lower Sacramento River | NaN | NA |
| San Joaquin River | NaN | NA |
| Sutter Bypass | NaN | NA |
| Upper-mid Sacramento River | NaN | NA |
| Yolo Bypass | NaN | NA |